ABAP Select data from SAP table IUILPRODUCT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IUILPRODUCT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to IUILPRODUCT. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the IUILPRODUCT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_IUILPRODUCT TYPE STANDARD TABLE OF IUILPRODUCT,
      WA_IUILPRODUCT TYPE IUILPRODUCT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <IUILPRODUCT> TYPE IUILPRODUCT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IUILPRODUCT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IUILPRODUCT
  INTO TABLE IT_IUILPRODUCT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IUILPRODUCT
*  INTO TABLE @DATA(IT_IUILPRODUCT2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_IUILPRODUCT INDEX 1 INTO DATA(WA_IUILPRODUCT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IUILPRODUCT ASSIGNING <IUILPRODUCT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IUILPRODUCT>-MANDT = 1.
<IUILPRODUCT>-UTILITIESPRODUCT = 1.
<IUILPRODUCT>-DIVISION = 1.
<IUILPRODUCT>-DIVISIONNAME = 1.
<IUILPRODUCT>-UTILITIESRATECATEGORY = 1.

ENDLOOP.

LOOP AT IT_IUILPRODUCT INTO WA_IUILPRODUCT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IUILPRODUCT-UTILSPRODCREATIONMETHOD, sy-vline,
  WA_IUILPRODUCT-UTILITIESREFERENCEPRODUCT, sy-vline,
  WA_IUILPRODUCT-PRODUCTTYPE, sy-vline,
  WA_IUILPRODUCT-PRODUCTGROUP, sy-vline,
  WA_IUILPRODUCT-PRODUCTAUTHORIZATIONGROUP, sy-vline,
  WA_IUILPRODUCT-INDUSTRYSECTOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IUILPRODUCT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_IUILPRODUCT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_IUILPRODUCT INTO WA_IUILPRODUCT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field UTILITIESPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IUILPRODUCT-UTILITIESPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IUILPRODUCT-UTILITIESPRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field UTILITIESREFERENCEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IUILPRODUCT-UTILITIESREFERENCEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IUILPRODUCT-UTILITIESREFERENCEPRODUCT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IUILPRODUCT_STR, 
MANDT TYPE STRING,
UTILITIESPRODUCT TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
UTILITIESRATECATEGORY TYPE STRING,
UTILSPRODCREATIONMETHOD TYPE STRING,
UTILITIESREFERENCEPRODUCT TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTAUTHORIZATIONGROUP TYPE STRING,
INDUSTRYSECTOR TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
UTILITIESBILLINGCLASS TYPE STRING,
UTILITIESBILLINGCLASSNAME TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IUILPRODUCT_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_IUILPRODUCT_STR-MANDT sy-vline 
WA_IUILPRODUCT_STR-UTILITIESPRODUCT sy-vline 
WA_IUILPRODUCT_STR-DIVISION sy-vline 
WA_IUILPRODUCT_STR-DIVISIONNAME sy-vline 
WA_IUILPRODUCT_STR-UTILITIESRATECATEGORY sy-vline 
WA_IUILPRODUCT_STR-UTILSPRODCREATIONMETHOD sy-vline 
WA_IUILPRODUCT_STR-UTILITIESREFERENCEPRODUCT sy-vline 
WA_IUILPRODUCT_STR-PRODUCTTYPE sy-vline 
WA_IUILPRODUCT_STR-PRODUCTGROUP sy-vline 
WA_IUILPRODUCT_STR-PRODUCTAUTHORIZATIONGROUP sy-vline 
WA_IUILPRODUCT_STR-INDUSTRYSECTOR sy-vline 
WA_IUILPRODUCT_STR-VALIDITYSTARTDATE sy-vline 
WA_IUILPRODUCT_STR-VALIDITYENDDATE sy-vline 
WA_IUILPRODUCT_STR-UTILITIESBILLINGCLASS sy-vline 
WA_IUILPRODUCT_STR-UTILITIESBILLINGCLASSNAME sy-vline 
WA_IUILPRODUCT_STR-PRODUCTDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.